Run results for: object lookup speed

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36

Browser: Chrome 114

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
without reference	39.4 Ops/sec
with reference	42.8 Ops/sec

Script Preparation code:

function getRandomIntInclusive(min, max) {
  min = Math.ceil(min);
  max = Math.floor(max);
  return Math.floor(Math.random() * (max - min + 1) + min); // The maximum is inclusive and the minimum is inclusive
}

function Skill(){
	this.id = getRandomIntInclusive(1, 1000000);
  this.proficiency = getRandomIntInclusive(0, 10);
}

function makeSkill(n) {
  var skills = new Array(n)
  for (var i = 0; i < n; ++i) {
    skills[i] = new Skill()
  }
  return skills;
}

function Employee(){
  this.age = getRandomIntInclusive(16, 75);
	this.id = getRandomIntInclusive(1, 1000000);
  this.skills = makeSkill(1000);
}

function makeEmployees(n) {
  var employees = new Array(n)
  for (var i = 0; i < n; ++i) {
    employees[i] = new Employee()
  }
  return employees
}

var e1 = makeEmployees(1000)

Tests:

without reference
var i = 1000; while (i--) { console.log(e1[i].skills[i]) console.log(e1[i].skills[i]) console.log(e1[i].skills[i]) console.log(e1[i].skills[i]) console.log(e1[i].skills[i]) console.log(e1[i].skills[i]) console.log(e1[i].skills[i]) console.log(e1[i].skills[i]) console.log(e1[i].skills[i]) console.log(e1[i].skills[i]) }
with reference
var i = 1000; while (i--) { let x = e1[0].skills console.log(x[i]) console.log(x[i]) console.log(x[i]) console.log(x[i]) console.log(x[i]) console.log(x[i]) console.log(x[i]) console.log(x[i]) console.log(x[i]) console.log(x[i]) }

Run results for: object lookup speed

without reference

with reference